html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background-color: #111;
  color: #fff;
  font-family: 'Segoe UI', sans-serif;
  overflow: hidden;
}

.slider-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  background-color: #111;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide {
  opacity: 0;
  transition: opacity 0.6s ease;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide.active {
  opacity: 1;
  z-index: 2;
}

.slide img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  background-color: #111;
}

.nav-button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  color: #29a19c;
  border: none;
  padding: 0;
  cursor: pointer;
  font-size: 48px;
  transition: color 0.3s, transform 0.2s;
  z-index: 2;
}

.nav-button:hover {
  color: #40c7c0;
  transform: translateY(-50%) scale(1.1);
}

.prev {
  left: 30px;
}

.next {
  right: 30px;
}

.progress-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 5px;
  background: #29a19c;
  transition: width 0.3s ease;
  z-index: 3;
}

.contact-info {
  position: absolute;
  bottom: 40px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 22px;
  line-height: 1.6;
  color: #29a19c;
  background: rgba(0, 0, 0, 0.6);
  padding: 20px 10px;
}

.contact-info a {
  color: #29a19c;
  text-decoration: underline;
  transition: color 0.3s;
}

.contact-info a:hover {
  color: #40c7c0;
}

@media (max-width: 768px) {
  .nav-button {
    font-size: 36px;
  }

  .prev {
    left: 15px;
  }

  .next {
    right: 15px;
  }

  .contact-info {
    font-size: 18px;
    padding: 16px 8px;
  }

  .slide img {
    max-width: 100vw;
    max-height: 100vh;
  }
}